Evaluation of the internal strains and stresses produced in a plate by propagating Lamb waves through the use of fibre optic sensors

Graham Thursby; Brian Culshaw

doi:10.1117/12.881594

15 April 2011 Evaluation of the internal strains and stresses produced in a plate by propagating Lamb waves through the use of fibre optic sensors

Graham Thursby, Brian Culshaw

Author Affiliations +

Proceedings Volume 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011; 79820B (2011) https://doi.org/10.1117/12.881594
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

Ultrasonic Lamb waves can be detected by various optical sensors, including polarimetric and FBG fibre sensors embedded within a sample plate. The difference between the responses of two types of optical fibre sensors, both positioned at different depths within a carbon fibre composite plate, to the first symmetric (S₀) and antisymmetric (A₀) Lamb waves are described. These responses illustrate the differences in internal strains and pressures characteristic of the two modes and may be used to identify phenomena such as mode conversion that might be caused by either structural features or damage within the material.

Citation Download Citation

Graham Thursby and Brian Culshaw "Evaluation of the internal strains and stresses produced in a plate by propagating Lamb waves through the use of fibre optic sensors", Proc. SPIE 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011, 79820B (15 April 2011); https://doi.org/10.1117/12.881594

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available